Q. Diseases are broadly grouped into infectious and non-infectious types. In the list given below, identify infectious diseases.
(i) Cancer (ii) Influenza (iii) Allergy (iv) Small pox

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Solution:

Diseases can be broadly divided into infectious and non-infectious. Infectious diseases are easily transmitted from one person to another. They are very common and all of suffer from it sometime in our life. Some examples of infectious diseases are AIDS, influenza, small pox, chicken pox, pneumonia, etc. Examples of non infectious diseases are cancer, allergies, diabetes, hypertension, obesity, etc. Cancer is the major cause of death due to non infectious disease.